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SMOKE CONSUMER Filed May 27' 1919 3 Sheets-Sheva?. l

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W. A. BAKER ET AL.

SMOKE CONSUMER Filed May 27u 1919 3 Shees--Snwt f" NM Kwlm .mw Q\@ M0 M0 mi.u www @o W-0 Am@ 112, 119mg. wwiwml W. A. BAKER ET IM. v

SMOKE CONSUMER FiledvMay 27. 1919 3 Shana-shaw 5 Patented iug. 12, 1924..

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fffitiijs "WILLIAM A. BAKER AND FREDERICK Af. RALVLLER, OF TOLEDO, OHIO.

SMOKE CONSUMER.

Application filed? May 27,

To i CLZZ.' 107mm. t may. concer/1t:

Be. it? known. that we, WILLIAM A. BAKER. andi` liinnnnnicitl A. Rin-Munn, citizens of the.` United States of America, residing at Td ledo,` luucasfCounty, Ohio, have invented a new. anduseful: Smoke Consumer., of which. the following is a: specification.

Thisinvention relates to fuelfburning apparatus;

This invention has utility when. incorporated in furnaces,.especially'of the hard fueli type for heating buildings.

Referring to the drawings:

Fig.. 1 is a perspective view,A with parts broken.away,.of allot aiirfnrnace having air embodiment of: thev invention incorporated' therewith g:

Figa 2; is a. section on the line llt-11', Fig'. 1,

Fig."- 3-1 is` a. section; on. the line HNI-HI, Fig. 1,

Fig. 4: isY ai. sectionv on they line lV-IV,

Fig; 5 isa verticali longitudinal section. of the furnace ofFigxl.; and Figilis a transverse section` thereof on the line V12-V1', Fig; 5..

rlhe furnace lis provided with4 the front 1. having, hardf fuel? supply or fire door 2,. and therebelow'an ash door3. Extending rearwardlyV from. this furnaceV front 1. is theA furnace housing 4. The three forward sections of this housing 42 are shown as including-` grates 5: over. the ash. chamber 6. Accord.- ingrly. in. the use of this furnace with coal,l thisisection; over the grates 5y is the main firing or fuelingJ chamber.. There-'is shown a.` horizontal extension rearwardly therebeyond.I providing a; draft way or combustion. chamber 7, from-which the` products-of combustion may pass to the heating passages 8,. over the furnace housing proper, on their way to the stach by iue 9.

An upstanding sectionA 9 having three inwardly projecting lugs 10 from the inner convex faces of its corrugations 11 is shown in position as the second section from the front of the furnace housing 4, while on the opposite side of the housing such a lug` carrying section 9 is the third section. Openings 12, 13, from the inside of the furnace housing are disposed in the sections 9 below the lugs 10. A

As thus interchangeably equipped for general installation or special substitution 1919.. Serial No. 300,126;

in existing furnaces, section 9 may carry. the air supply device of smoke consuming; utility in. accordance with the invention herein.

This device includes a box. or chamber mem-V ber 14. having along the upper side thereof three eyes lithrough whichthe lugs 10 may extend for suspending* the member 14 inside of the furnace above. the grates V adjacent'. the combustion chamber 7. Extending through the openingsl12, 13' of. the section- 9, and integral. with the cast iron member 14, are supply duct sections or necks 16, 17, having verticalisidel grooves 13,. which when in-` position. as assembledV with, the section 9,. oppose grooves 19 vertically extending. in. the section 9.. Accordingly a dropping; of pins 20` into theV grooves 18, 19,. serves to lock the member 14 into assembled suspended` position inthe furnace. Upper section 21, assembled with lower' duct section 221'by'bolts 23 have-frange extensions 24 embracing the outward extensions or collars oftheopenings 12, 13, carrying the-neck duct sections: 16,. 17, and retain. the pins 2O in: position, while assembly o-f the sectional Lrsupply duct 21, 22, isfmaintained bybolts engaging ribs 26 of thel section 9. Duct: sections 27, 23, are assembled by bolts 23- and; connected by bolts 29-through flanges 3Oof.y adjacent housing sections to provide a con.- tinuous cast ironhigh-temperatuie-resisting, air-leakage-preventing ductA to the furnace front 1. At the furnacefront 1, adjustable damper means 31 may be shifted to control the. air supply rate to the member 14. Thisair supply through. the duct.' alongthe outside of. the furnace housingmayv bewarmed, but upon entering the member 14, ift becomes more highly heated inv the elongated chamber 32 thereof. Fromthis chamber 32, this hot air may pass inward and upwardly out the series of'openiugsf33.A It may be dispersed downwardly and inwardly througlr` series of openings 34, 35..

This controllable dispersion. of highly heated air adjacent the rearward region of the fuel receiving chamber of the furnace is effective in providing oxygen for completing combustion in the combustion chamber. This utilizes the full heating energy of the fuel in the most desirable region of the furnace, distributes such heat action throughout the furnace, thus avoiding with the saine capacity, excessive local heating for deleterious action say in the fueling chamber. yllhe air supply is sodispersed as to be thorough in completing combustion and may be controlled for accurately determining complete combustion.

cessive supply of cold air in such region. By actual test applicant-s have brought about advantages of considerable percentage utility by delivering this heated air supply in this after location, even over a. forward heated air supply. Y

lVhen this Vdevice is applied to a bituminousvcoal heating furnace, it is desirable when one device is applied to the region of the third section'on one side, that the device be applied say to the second section on the other. As so arranged there may be a reduction in chimney or stack draft in the use of the device herein with increase in the useful heat developed. For instance, a furnace without f this device operated to give 19000 F. in the region 7 had considerable draft, and thetemperatme of the stack gases were approximately700O F. 1With like fuel this same furnace with less draft produced 250070 F. in the region i7 and the temperature of the stack gases here was kept down to approximately 7000 l?. as befo-'Q What is claimed and it is desired to secure by Letters Patent is: l. A furnace embodying a housing provided with a combustion chamber, there being a pairof openings into the furnace at said ychamber and lugs projecting into the chamber from the housing adjacent said openings, of an auxiliary air supply device comprisingan elongated chamber having air supply extensions protruding through said openings, eyes for engaging the lugs in sustaining the chamber of the devicein the coinbustion chamber, and series of outlet holes variously directed from the device chamber into the combustion chamber.V

2. In a furnace having a combustion chamber having walls, a pair of opposing heated air delivery means for the chamber ,including air supply chambersand lugs for hanging the .air supply chambers in the combustion Vchamber said `air chambers being provided with air supply duct extensions through said walls independently of the lugs, said extensions anchoring the supply chambers in position in the furnace in addi` tion to the hanging of said chambers, and a` Vrow of downwardly directed air outlets There is no chilling of the for-` ward portion ofthe firing chamber by exfrom the supply chambers into the combustion chamber.

3. A furnace having a main combustion chamber and an extension therebeyond, and an air supply device comprising a housing having a chamber with a plurality of outlets therefrom for dispersing air heated in the device chamber beyond the main combustion chamber, said device chamber having a sunply opening duct and mounting means in addition to the supply opening duct and wholly interior of the furnace for suspending the device in heat receiving position in a furnace.

l. A. furnace having a front, a furnace housing connected to the front and extending rearwardly therefrom, gratos in said housing extending short of the rearward extent of the housing, a duct extending along the housing` from the furnace front and outside the furnace to provide an air heating supply passage, a device sustained on the inside of the furnace housing above the grates and restricted to the region adjacent the extension thcrebeyond, said device comprising a chamber in communication with said duct and having variously directed outlet openings for dispersing heated air into the furnace rearward of the grates, and lugs within the furnace for sustaining said device.

5. A furnace having a housing provided with grates and an extension rearward from the grates, said housing` having an upstanding section adjacent the rearward portion of the grates provided with lugs projecting into the furnace and openings through said housing into the furnace spaced from the lugs, and an air supply device con'iprising a chamber independently of said housing hung on the lugs, said chamber having openings for delivering air into the furnace, said chamber in addition to hanging on the lugs also having supply duct sections protruding into the furnace from through said housing openings upward from the region of the grates and adjacent said lugs, means coacting with the duct sections for maintaining the chamber as hanging on the lugs in posit-ion, and means for varying the air supply to the chamber.

In witness whereof we ailix our signatures.

VLLIAM A. BAKER. FREDERICK A. RAMLER. 

